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12-13-2009, 06:37 PM   #1
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Canon Speedlite 199A on Pentax K-m

Hi!
I have a legacy Can*n outfit in addition to my Pentax K-m DSLR and I have tried to use the 199a flashgun on the K-m. It works remarkably well, but fires only once - the first time I shoot after the flash is on (and charged). After that it won't fire again (even after waiting for it to recharge). I have to actually power the Speedlite off then on (even for a very short break) to get it fire again.
Any clue? The K-m doesn't do that with another Speedlite that I also own (the 420ex). This is pesking me because I use the 199a also with my old A-series film bodies and I'd prefer use the same flash for the DSLR as well (I'm aware that it's not going to provide TTL flash but I'm OK with that limitation).

12-13-2009, 06:51 PM   #2
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I have the 270 EX and I have a similar issue - the flash is manual for use on a K7, and will "go to sleep" after about 30 secs or so. Like you say, I have to power my unit on again after a short break.

Has it got a test button, and will that work to "wake" it for use again?
Otherwise I don't have any suggestions.
12-14-2009, 06:33 PM   #3
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For some reason the older Canon flashes won't work with external triggers like the Morris DS-1 or Vivitar SL-2 for more than one flash either. The flash probably wants to see a resetting voltage (bias voltage provided by a Canon camera) that a two pin connection can't provide.
02-23-2010, 09:27 AM   #4
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I have the same 199a. on my K10 I've figured out that you need to push the pilot/test button on the right at the base of the flash *after each shot* and you can shoot away.

You have to be in x-sync mode on the dial. If you are in M the test button will fire the flash, but in X mode it will do nothing until you hit the shutter. I hope this works on other bodies as well.

EDIT: Also make sure that the shutter speed selector (on the front of the flash, hiding in the hinge of the swivel, is set to AUTO.


Last edited by JesseDavis; 02-23-2010 at 09:39 AM. Reason: devil in detail
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